1 . y=2×1011Nm-2

• A. $1.0 m$
• B. $0.2 m$
• C. $0.5 m$
• D. $2.0 m$

Answer: Option D

Explanation:

2 . y=2×1011Nm-2

• A. $2\times {10}^{-4}$
• B. $2\times {10}^{-5}$
• C. ${10}^{-4}$
• D. ${10}^{-6}$

Answer: Option A

Explanation: